Ozone generator



H. B, HARTMAN. ozoNE GENERATOR.

APPLICATION FILED OCT Il. 1921.

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Patented Nov. 2l, 1922.

H. B. HARTMAN.

OZONE GENERATOR.

APPLICATION FILED ocT. II. |921.

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OZONE GENERATOR.

APPLlATloN FILED ocT. 1l. 1921. 1,436,251 Patented NOV- 21, 1922.

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Patented Nov. 21, 1922.

. STATES A V1,436,251 PATENT oFFlcl-z.

HARRY BUXTON HARTMAN, F SCOTTDALE, PENNSYLVANIA, ASSIGNOR T0 ELECTRIC WATER STERILIZER & OZONE COMPANY. 0F SCOTTDALE, PENNSYLVANIA, A COR- PORATION 0F PENNSYLVANIA.'

ozoNE GENERATOR.

Applicationv led October 11, 1921. Serial No. 07,039.HEi

T o all whom t my concern.'

Be it known that I, HARRY B. HARTM'AN, a citizen of the United States, residing at Scottdale, in the county of Westmoreland 5 and State of Pennsylvania, have/ invented certain new ,and useful Improvements in Ozone Generators, of which the following is a specification.

This invention relates to new and useful im rovements in ozone generators.

n the present state of the art, the ozone generating unit is disposed in such a relation between the air inlet and the ozone outlet that the air and ozone travel in a circuitous ath around the edges of the dielectrics.

he air which is heated to an intense degree throu h the action of the electrode, acts on the eiIges and corners of the dielectrics and often causes these edges and corners to break 2o off, thus lessening the life of the dielectrics.

This condition `isimproved to some extent by the use of air and water cooling means.

The principal object of my invention is toA provide an arrangement whereby the burning and'consequent breaking off of the corners and edges of the dielectrics will be avoided. To this end I have provided a generator in which there is provided a straight passage from the air inlet past the generating unit and to the ozone outlet, whereby short circuiting of air currents is avoided and a more uniform distribution of air relative to the dielectrics is obtained.

Another object of my invention is to provide an air lter which is disposed between the air inlet and the ozone generator whereby all dust and particles of chemicals are removed from the air before the latter reaches the generating unit.

A further object of the invention is to provide a twoart casing for the generator in which one o the-parts constitutes a holder for the enerator.

A stil further object of the invention is to 415v provide a generator including a casing havlng one or more sight openings formed therein for viewing the action1 of the generating In the accompanying drawings:

Figure 1 is a front elevation of an ozone generator constructedy in accordance with m invention. s Iig. 2 is a side elevation thereof.

3 is a top plan view thereof.

Fig. 4 1s a front elevation ofthe casing sect1on-which supports the generating unit. the unit being removed to better show the construction of said section.

Fig. is a similar view but showing the generating unit assembled therein, the front dielectric being omitted.

Fig. 6 is a vertical sectional view taken on the line 6-6 of Fig. 1.

Fig. 7 is a horizontal sectional view take on line 7--7 of Fig. 1.

Like reference numerals designate Acorresponding parts throughout the several views.

Referring to the drawings, my improved ozone generator comprises a casing consistlng of opposed sections A and B, the section A constituting a holder for the ozone generating u'nit and the section B constituting a cover therefor. The inner face of the section A is recessed as at 5 to form a Hat face 6 disposed in a plane parallel with the abuttingedges of the sections. This recess 5 forms at thelower end of the section spaced seats 7, 7 and an air inlet opening 8 located between said seats. The recess 5 forms resultant side walls 9, 9 which merge with the seats 7. Formed in the surface 6 is an annular endless channel 10 forming an air space for a purpose hereinafter described. A similar channel 10a is formed in the inner face of the section B. y

The ozone generating unit is positioned within the recesss 5 and consists -of spaced dielectrics 11, 11 formed of glass, mica, orl

' through corresponding openings formed in the electrode and engage the dielectrics so as to maintain the electrode in a positiomcentrally between the same. In order to retain l the electrode against endwise shiftingmovements I have Iprovided at each side of the electrode a metallic stri 14 which is vertically disposed against t e wall 9,`and thls strip carries a plurality of insulators 1,5, 15 which engage the adjacent edge of the electrode. In order to support these electrodes against downward movement, I have provided a connector link, 16, the upper end o f which engages the lower edge of the electrode. The lower end of the connector link 16 is connected to a binding post 17 which extends through an opening 18 formed in the casing A. This binding post is surrounded by an insulator 19 which extends into the opening 18 and the binding post and insu lator are lxedly secured to the casing A by means of a plate 20. 1t will thus be seen'that the connector link 16 not only forms a bottom support for the electrode but also constitutes a conductor for the current between the'binding post 17 and the electrode. The channels 10 and 10a which form air spaces, extend in substantial parallelism to the outer edges of the dielectrics and are disposed in close proximity thereto so as to provide an additional cooling means therefor.

Formed in the upper part of the casing' section A above the generating unit is a plurality of rearwardly extending or lateral outlet openings 21 for the ozonel These openings extend inwardly from the surface 6 of the recess 5 `and communicate with a channel 22 extending at right anglesv and formed in the upper edge /of the section A.-

Similar outlets 23 and a similar channel 24 are formed in the upper portion of the sec tion B. A closure plate C` is positioned above the sections and B and is formed with openings 25, 25 which communicate with the respective channels 22v and 24. These openings 25 lead into a single opening 26 formed in a boss 27 carried by the closure plate C.

From the foregoing it will be observed that the air inlet/opening 8 .is positioned directly below the generating unit and that this air passes in a straight line to the generatlng unit and that the resultant ozone passes from the generating-unit in a vcontinued straight line to the ozone outlet 26.

Formed in the closure plate C is a plurality of sight openings 27, 27 which are disposed in alignment with the generating unit. These openings are covered with glass or other transparent material, and serve to permit inspection of the generating unit while it is in action.

"`The casing sections are respectively formed with meeting flanges 28, 28 which are secured together by bolts 29. The closure plate is secured to the generator casing by a plurality of bolts 30. rvThe casing sections A and B are each provided with a plurality of heat radiating ribs 31 which serve to cool the generator :from the effects of the high current voltage which is necessarilyV used by the generating unit in producing the ozone.

the filter is disposed between the air inlet and the ozone generating unit. Suitable connections are made between the air inlet openings 34 and a dehydrator`(not shown). Thus ,the dried air coming from the dehydrator will pass through the openings 34 into the shell 33, thence through the air filter where all dust and particles of ,chemicals will be removed7 and thence upwardly in a straight line past the generating unit, the resultant ozone thence passing in a continued straight line to the ozone outlets.

I F rom the foregoing it will be seen that the electrode and oppositely disposed dielectrics have their surface planes in substantial alignment with the air inlet and with the ozone outlet; and that the generating unit is .positioned inK perpendicular relation be .I

tween said inlet and said outlet.

As a result of the above construction, the air which has been highly heated by the generating unit and the ozone which results from the generatin unit will flow through the machine in a' su stantially straight path from the air inlet to the ozone outlet, and as a result, the heated air and ozone will be uniformly spread, and consequently the edges andl corners f the Adielectrics will not be burned and subsequently broken as -a result thereof. Furthermore, by providing the air space or channels 10 and'lO in close proximity to thel edges of the dielectrics, the edges thereof will be further protected against being burned by the heated air and resultant ozone.

What I claim 'as newvis:

1. The combination with a casing having `an air inlet and an ozone outlet, of an ozone generating unit consisting of a pair of dielectric members and intermediate elecftrode arranged in spaced relation and sup-4 ported in said casing to provide a straight ilow of air from said inlet to said generating unit and for providing a continued straight flow of the resultant ozone to said outlet.

2. The combination with a casing having an air inlet and lan ozone outlet, of an ozone generating unit supported in said casing and comprising an electrode and oppositely dis- .posed dielectrics having their surface planes in substantial alignment with said inlet and outlet. v

3. The combination with a casing having s a lower air inlet and an upper ozone outlet,

. generating unit housed and supportedv in thel of an ozone generating unit consisting of a pair of dielectric members and intermediate electrodek arranged in spaced relation and positioned in perpendicular relation between said inlet and said outlet.

1. In an ozone generator, the combina' tion with a casing formed of opposed sections, one of said sections being centrally recessed and formed with an air inlet opening and an ozone outlet opening, of an ozone recess of said section.

5. In an ozone generator, the combinatio with a casing formed of opposed sections, one of said sections being recessed and formed with an air inlet opening and ozone outlet opening, said recess formin resultant y seats on opposite sides of said air 1nlet opening, and an ozone generating unit located in said recess and including a pair of spaced dielectrics supported'on the seat formed by said recess.

6. In an ozone generator, the combinatlon with a casing formed of opposed sections,

one of said sections being recessed and formed with an air inlet opening and ozone outlet opening, said recess ormin )resultant seats on opposite sides of said a1r inlet opening, an ozone generating unit located in said recess and including a pair of spaced dielectrics and an intermediate electrode, said dielectrics being supported on the seat formed by said recess, and means for supporting and insulating said electrode.

7. In an ozone generator, the combination with a casing formed of opposed sections, one of said sections being recessed and formed with an air inlet opening and ozone outlet opening, said recess forming resultant seats on opposite' sides of said air inlet opening, an ozone generating unit located in said recess and including a pair of spaced dielectrics and an intermediae electrode, said dielectrics being supported on the seat formed by said recess, means for supportingv said electrode, and insulated buttons secured to said electrode and engaging said dielectries to maintain said electrode and dielectrics in spaced relation.

8.A In an ozone generator, the combination with a casing formed of'opposed sections yone of said sections being recessed 'an formed with an air inlet opening and ozone outlet opening, said recess forming resultant seats on' opposite sides of said air inletopening, an ozone generating unit located in said recess and including a pair of spaced dielectrics and an intermediate electrode, said dielectrics being supported on the seat formed by said recess, insulating means positioned between the lwalls of the recess and the edges of the electrode, and means connected with the bottom edge vof the electrode for supporting the latter,

9: In an ozone generator, the combination tion with a casing having an air inlet and an ozone outlet, of an ozone generating unit supported in said casing to provide ka straight i'low of air from said inlet to said generating unit and for providing a continued straight fiow ofthe resultant ozone to said outlet, and an air filter ,disposed between said air inlet and said generating,

unit.

11. In an ozone generator, the combination with a casing having an air inlet and ozone outlet, of an ozone generating unit supported in -said casing and comprising an electrode and oppositely disposed dielectrics having their surface planes in substantial alignment with said inlet and outlet, and an air filter disposed between said air inlet and said generating unit.

12. In an ozone generator. the combination with a casing havinga lower air inlet and an upper ozone outlet, of an ozone generating unit positioned in perpendicular relation between said inlet and said outlet, and an air filter disposed between said air inlet and said generating unit.`

13. In -an ozone generator, the combination with a casing formed of opposed sections, one of lsaid sections being recessed and formed with a lower air inlet opening Supported in said' casing and comprising an electrode and oppositely disposed dielectrics having their surface planes in substan tial alignmentgwith said inlet and outlet, said ycasing being provided with endless air channels `yarranged inalig'nment. with and disposed in close proximity to the edges of the dielectrics. y'

15. In an ozone generator, the combination with a casing formed of opposed sec-` tions, one of said sections being'recessed and formed with an air inlet opening and ozone outlet opening, said recess forming resultant seats on opposite sides of said -air -inlet opening, and an ozone generating unit located in said recess and including a pair of spaced dielectncs supported on the seat formed by said'recess, said sections being tion with a casing having an air inlet and an ozone outlet, of an ozone generating unit respectively formed with endless air channels arranged ,in alignment with and disposed in close proximity to the edges of the dielectrics.

16. In an ozone generator, the combination with a casing formed of opposed sections, one of 'said sections being recessed and formed with a lower air inlet opening, said sections being each formed at its upper end with an ozone outlet opening, an ozone generating unit located in said recess, and a closure plate secured to the top of the sections and formed with an ozone outlet communicating with said ozone outlet openings of the casing. V

17. In an ozone generator, the combination with a casing formed of opposed sections, one of said sections being recessed and formed with a lower air inlet opening, said sections being eachy formedl at its upper end with an ozone outlet opening, an ozone lgenerating unit located in said-recess, and a closure plate secured ,to the top of theV sections and provided with a window for viewing the action'of the generating unit.

18. An ozone generator, including a pair of relatively separable sections having openings at opposite edges thereof, an ozone generating unit arranged between said sec-l tions, an air filtering unit clamped to one of said openings, and a closure plate fitted to the other of lsaid openings.

19. An ozone generator, including a pair of relatively separable sections having openings at opposite edges thereof, an ozone generating unit arranged between said sections, an air filtering unit clamped, to one of said openings, and a Aclosure plate hav ing a deliveryl outlet and inspection windows fitted to the other o'f said openings.

20. An ozone generator, including a caslng, and an ozone generating unit arranged within the casing, said casing being provided ;with an insulating air channel located at opposite sides of the edges of one of the members of the generating unit thereby to provide an insulating air space.

21. An ozone generator, including complemental casing sections having grooves formed in adjacent faces thereof, an ozone generating unit clamped between said sec- ,tions and one of the members of said generating unit terminating'within theY limits' of said grooves in the casing sections.

22. An ozone generator including complemental casing sections having grooves ormed in the adjacent faces thereof, an ozone generating unit clamped between the adjacent faces of the sections and consisting ofv dielectric plates overlying said grooves, and an intermediate electrode plate of .less area than the dielectric plates whereby its edge portions terminate within the limits 4of said grooves.

23. In an ozone generator the combination of a'n ozone generating unit consisting of generating platesvand a casing having an insulating a1r channel lying opposite the edges of one of said plates..

In testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

HARRY BUXTON HARTMAN. 

